We divide 846590 by 12
We're looking to find how many times 12 goes into 846590.

Moving on to step 1:
If we divide 8 by 12, we get 0 and a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Grab the next digit (4) from the dividend, add it to 8, then carry on: 84 / 12

On to step 2:
When dividing 84 by 12, we get 7 with a remainder of 0.
Put 7 as the next digit of the answer. 
Result so far: 7.0
If we subtract 84 from 84, we get 0.
Fetch the next digit (6) from the dividend, attach it to 0 and continue: 6 / 12

Advancing to step 3:
When dividing 6 by 12, we get 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 70.0
The remainder is 6 after subtracting 0 from 6.
Fetch the next digit (5) from the dividend, attach it to 6 and continue: 65 / 12

Going ahead to step 4:
12 goes into 65 5 times with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 705.0
Deduct 60 from 65 and we're left with 5.
Append the next digit (9) from the dividend to 5 and continue with: 59 / 12

Moving on to step 5:
59 divided by 12 is 4 with a remainder of 11.
The next digit of our result is 4. 
Result so far: 7054.0
Subtract 48 from 59 to get 11.
Fetch the next digit (0) from the dividend, attach it to 11 and continue: 110 / 12

Let's proceed to step 6:
If we divide 110 by 12, we get 9 and a remainder of 2.
Use 9 as the next digit of our solution. 
Result so far: 70549.0
The remainder is 2 after subtracting 108 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 7:
If we divide 20 by 12, we get 1 and a remainder of 8.
Write down 1 as next digit of the result. 
Result so far: 70549.1
The remainder is 8 after subtracting 12 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 8:
12 goes into 80 6 times with a remainder of 8.
The number 6 becomes the next digit in our result. 
Result so far: 70549.16
The remainder is 8 after subtracting 72 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 9:
12 goes into 80 6 times with a remainder of 8.
The next digit of our result is 6. 
Result so far: 70549.166
Subtract 72 from 80 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

In conclusion, the division gives 70549.166 with a balance of 0.0008.